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[flang] Add -rtlib flag (#99058)

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This patch allows the -rtlib flag with flang-new to select between the
libgcc_s and compiler-rt runtimes. The behaviour is identical to the
same flag with clang.
This commit is contained in:
David Truby
2024-07-17 23:28:36 +01:00
committed by GitHub
parent 07f8a65d09
commit 7647174738
2 changed files with 6 additions and 1 deletions
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2
clang/include/clang/Driver/Options.td
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@@ -5622,7 +5622,7 @@ def resource_dir_EQ : Joined<["-"], "resource-dir=">, Flags<[NoXarchOption]>,
Alias<resource_dir>;
def rpath : Separate<["-"], "rpath">, Flags<[LinkerInput]>, Group<Link_Group>,
Visibility<[ClangOption, CLOption, DXCOption, FlangOption]>;
def rtlib_EQ : Joined<["-", "--"], "rtlib=">, Visibility<[ClangOption, CLOption]>,
def rtlib_EQ : Joined<["-", "--"], "rtlib=">, Visibility<[ClangOption, CLOption, FlangOption]>,
HelpText<"Compiler runtime library to use">;
def frtlib_add_rpath: Flag<["-"], "frtlib-add-rpath">, Flags<[NoArgumentUnused]>,
Visibility<[ClangOption, FlangOption]>,

5
flang/test/Driver/linker-flags.f90
View File

@@ -11,6 +11,7 @@
! RUN: %flang -### --target=x86_64-unknown-dragonfly %S/Inputs/hello.f90 2>&1 | FileCheck %s --check-prefixes=CHECK,UNIX,UNIX-F128%f128-lib
! RUN: %flang -### --target=x86_64-unknown-haiku %S/Inputs/hello.f90 2>&1 | FileCheck %s --check-prefixes=CHECK,HAIKU,HAIKU-F128%f128-lib
! RUN: %flang -### --target=x86_64-windows-gnu %S/Inputs/hello.f90 2>&1 | FileCheck %s --check-prefixes=CHECK,MINGW,MINGW-F128%f128-lib
! RUN: %flang -### -rtlib=compiler-rt --target=aarch64-linux-gnu %S/Inputs/hello.f90 2>&1 | FileCheck %s --check-prefixes=CHECK,UNIX,COMPILER-RT
! NOTE: Clang's driver library, clangDriver, usually adds 'oldnames' on Windows,
! but it is not needed when compiling Fortran code and they might bring in
@@ -33,6 +34,7 @@
! UNIX-F128LIBQUADMATH-SAME: "-lFortranFloat128Math" "--as-needed" "-lquadmath" "--no-as-needed"
! SOLARIS-F128LIBQUADMATH-SAME: "-lFortranFloat128Math" "-z" "ignore" "-lquadmath" "-z" "record"
! UNIX-SAME: "-lFortranRuntime" "-lFortranDecimal" "-lm"
! COMPILER-RT: "{{.*}}{{\\|/}}libclang_rt.builtins.a"
! DARWIN-LABEL: "{{.*}}ld{{(\.exe)?}}"
! DARWIN-SAME: "[[object_file]]"
@@ -61,3 +63,6 @@
! MSVC-LABEL: link
! MSVC-SAME: /subsystem:console
! MSVC-SAME: "[[object_file]]"
! COMPILER-RT-NOT: "-lgcc"
! COMPILER-RT-NOT: "-lgcc_s"